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Question

If the present petrol price is 50 per litre, then what is the new price when:

i) There is an increase in the price by 20% on the original price?

ii) There is a decrease in the price by 10% on the original price?


A

45, 60

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B

80, 75

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C

75, 80

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D

60, 45

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Solution

The correct option is D

60, 45


i) When there is an increase by 20% on the price, the increase in price is:
= 20100×50=10
Therefore, the new petrol price is: ₹ (50 + 10) = ₹ 60 per litre

ii) When there is a decrease by 10% on the price, the decrease in price is:
= 10100×50=5
Therefore, the new petrol price is: ₹ (50 - 5) = ₹ 45 per litre


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